Governing and Monitoring of Gas Turbine Engine for Helicopters PUBLIC ACCESS

[+] Author Affiliations
J. Grandcoing

SUD-Aviation, Marseilles, France

Paper No. 70-GT-37, pp. V01AT01A038; 10 pages
  • ASME 1970 International Gas Turbine Conference and Products Show
  • Volume 1A: General
  • Brussels, Belgium, May 24–28, 1970
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7985-6
  • Copyright © 1970 by ASME


Pilots of modern aircraft have had to be provided with minimal operations in engine handling and controlling in order to devote themselves mainly to aircraft handling. Helicopter design has increasingly used the turbine engine governing system not only to control engine operation, but also to maintain a constant rotor speed, to pre-set the maximum power available in case of need, and to protect the rotating assemblies against overspeeding. This paper reviews the general requirements to be met by the helicopter engine governor system in multi- and single-engined craft with turbo-shaft or free-turbine engines (with the engine governor in the free-turbine model either controlled by the rotor speed governor or used to control rotor speed. Since the governor system has come to be considered an essential component of the helicopter and no longer as an engine component, the system must participate in general operation of the helicopter, allowing maximum performance over the entire flight envelope while requiring only minimal action and monitoring by the pilot.

Copyright © 1970 by ASME
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